Multichannel Commands Explained; Table 5-8 Rules Form - Ametek Sorensen XG Operation Manual

Multichannel Commands Explained

All SCPI commands in the XG/XTR support the use of multichannel
addressing; however, only one device can respond to a message.
Responses will be sent according to the conditions set out in Table 5-8.
Table 5-8
Condition
No multichannel
address used
Single multichannel
address specified
ALL or broadcast
multichannel
address specified
Multiple
multichannel
addresses specified
M370430-01 Rev B
The use of multichannel addressing allows you to send messages to
one device, more than one device or to all devices. Any of the
remote interface types can be used to send a multichannel
command through the device that is physically connected to the PC
to all the devices, provided that all other devices are connected to
via the RS-485 bus. In order to use multichannel addressing, the
setup of the wiring should be completed as described in "Multiple
Power Supply Connections to RS-485 Bus" on page 5-19.
Rules for Multichannel Responses
Response
Only the device selected
using the *adr or
:SYST[<address>]
:COMM[:MCH]:ADDR
commands will respond.
The device addressed in the
command will respond
regardless of if it has been
selected.
Only the device selected
using the *adr
or :SYST[<channel>]:C
OMM[:MCH]:ADDR
commands will respond. If
none of the devices have
been selected then no
response will be seen.
Only the device selected
using the *adr or
:SYST[<address>]
:COMM[:MCH]:ADDR
commands will respond. If
none of the device have
been selected then no
response will be seen.
Remote Operation
Example
SYSTem:VERSion?
SYSTem2:VERSion?
:SYSTem
ALL:VERSion?
or
:SYSTem0:VERSion?
SYSTem
1,2,4,5,6:VERSion?
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